FOXBOROUGH, Mass. -- Kansas City Chiefs coach Todd Haley held out hope that quarterback Matt Cassel would be able to return this season from a hand injury. But those hopes were dashed Monday when the team placed Cassel on season-ending injured reserve, according to a team source.

The Chiefs later confirmed the move and said they had promoted rookie wide receiver Jeremy Horne to take Cassel's place on the 53-man roster.

Listen to the 2011 NFL season LIVE -- hear all the action online in premium sound quality with NFL Audio Pass. Sign up now!